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    • 109. 发明申请
    • DEVICES, SYSTEMS, AND METHODS FOR SINGLE CELL BACTERIA ANALYSIS
    • US20210322984A1
    • 2021-10-21
    • US17259136
    • 2019-07-11
    • The Penn State Research Foundation
    • Pak Kin WONGHui LI
    • B01L3/00C12Q1/04C12Q1/18C12Q1/689
    • Provided are devices and methods for detecting the presence, absence, and/or characteristics of bacteria. A microfluidic device for characterizing bacteria is provided. The device contains one or more bacteria trapping channels, and one or more pneumatic channels in contact with the bacteria trapping channels, wherein the one or more pneumatic channels are configured to reduce the height of the one or more bacteria trapping channels to thereby trap bacteria in the one or more bacteria trapping channels if said bacteria are present in a liquid biological sample that is introduced into the microfluidic device. Also provides is a method for identifying bacteria that may be used with the microfluidic device. The method includes contacting a sample that contains bacteria with a carbon nanotube and microwave energy such that a probe is introduced into the bacteria. The probe is a double strand polynucleotide probe having a first strand that includes a detectable label, and a second strand having a quencher moiety that quenches a signal from the detectable label when the probe is double stranded. The method includes allowing hybridization between the labeled strand with a polynucleotide in the bacteria if bacteria are present, and if bacteria are present, detecting a signal from the labeled strand that is hybridized to a polynucleotide in the bacteria to thereby identify the presence of, and/or the type of bacteria in the sample, and if the bacteria are not present, determining a lack of a signal from the labeled strand.